Screen control method and device

ABSTRACT

A screen control method is provided. The method is implemented in a terminal device having a first screen, a second screen, and a lens, the first screen and the second screen being disposed facing against one another. The method includes obtaining a command configured to instruct to display the image captured by the lens on the second screen. The method also includes controlling display of the image captured by the lens on the second screen based on the command.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation application of InternationalApplication No. PCT/CN2018/090481, filed on Jun. 8, 2018, the entirecontents of which are incorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to smart terminal technology and, moreparticular, to a screen control method and device.

BACKGROUND

Currently, for a user to conveniently obtain imaging parameters forselfie shooting when the user performs a selfie shooting, a camera mayprovide two screens; in a selfie shooting, a first screen displays animage captured by a lens, and a second screen displays imagingparameters.

However, because the camera only has one lens, and due to the limitationon the imaging direction of the lens, the image captured by the lens isdisplayed on the first screen. In a selfie shooting, the first screenfaces against the user, and the user cannot know what images the lenshas captured, which makes it difficult to capture the user desiredimages.

SUMMARY

Embodiments of the present disclosure provide a screen control methodand device, such that when the user performs a selfie shooting, the usercan know the images captured by the lens, thereby capturing the userdesired images.

In accordance with an aspect of the present disclosure, a screen controlmethod is provided. The method is implemented in a terminal devicehaving a first screen, a second screen, and a lens, the first screen andthe second screen being disposed facing against one another. The methodincludes obtaining a command configured to instruct to display the imagecaptured by the lens on the second screen. The method also includescontrolling display of the image captured by the lens on the secondscreen based on the command.

In summary, the screen control device of the present disclosure controlsthe display of the image captured by the lens on the second screen basedon the command configured to instruct to display the image captured bythe lens on the second screen. The second screen is a screen the userfaces when performing a selfie shooting. As such, when the user performsa selfie shooting, the user can view the image captured by the lens,thereby capturing the user desired images. User experience is enhanced.

BRIEF DESCRIPTION OF THE DRAWINGS

To describe the technical solutions of the embodiments of the presentdisclosure in detail, next, the drawings referred to in the descriptionsof the embodiments of the present disclosure will be briefly introduced.Evidently, the drawings described below are only some embodiments of thepresent disclosure. A person having ordinary skills in the art canobtain other drawings based on these drawings without creative effort.

FIG. 1 is a perspective view of a schematic structure of a camera, inaccordance with an embodiment of the present disclosure;

FIG. 2 is a front view of the camera along the A direction in FIG. 1, inaccordance with an embodiment of the present disclosure;

FIG. 3 is another perspective view of the schematic structure of thecamera, in accordance with an embodiment of the present disclosure;

FIG. 4 is a first flow chart illustrating a screen control method, inaccordance with an embodiment of the present disclosure;

FIG. 5 is a second flow chart illustrating a screen control method, inaccordance with an embodiment of the present disclosure;

FIG. 6 is a third flow chart illustrating a screen control method, inaccordance with an embodiment of the present disclosure;

FIG. 7 is a fourth flow chart illustrating a screen control method, inaccordance with an embodiment of the present disclosure;

FIG. 8 is a fifth flow chart illustrating a screen control method, inaccordance with an embodiment of the present disclosure;

FIG. 9 is a sixth flow chart illustrating a screen control method, inaccordance with an embodiment of the present disclosure;

FIG. 10 is a seventh flow chart illustrating a screen control method, inaccordance with an embodiment of the present disclosure;

FIG. 11 is an eighth flow chart illustrating a screen control method, inaccordance with an embodiment of the present disclosure;

FIG. 12 is a first schematic diagram of a structure of a screen controldevice, in accordance with an embodiment of the present disclosure;

FIG. 13 is a second schematic diagram of a structure of the screencontrol device, in accordance with an embodiment of the presentdisclosure;

FIG. 14 is a third schematic diagram of a structure of the screencontrol device, in accordance with an embodiment of the presentdisclosure;

FIG. 15 is a fourth schematic diagram of a structure of the screencontrol device, in accordance with an embodiment of the presentdisclosure;

FIG. 16 is a fifth schematic diagram of a structure of the screencontrol device, in accordance with an embodiment of the presentdisclosure;

FIG. 17 is a sixth schematic diagram of a structure of the screencontrol device, in accordance with an embodiment of the presentdisclosure; and

FIG. 18 is a seventh schematic diagram of a structure of the screencontrol device, in accordance with an embodiment of the presentdisclosure.

DETAILED DESCRIPTION OF THE EMBODIMENTS

To render the purpose, technical solutions, and advantages of theembodiments of the present disclosure clearer, next, with reference tothe accompanying drawings of the embodiments of the present disclosure,the technical solutions of the embodiments of the present disclosurewill be described in details. The described embodiments are only someembodiments of the present disclosure, but not all of the embodiments.Based on the embodiments of the present disclosure, a person havingordinary skills in the art can obtain other embodiments without creativeeffort, which also belong to the scope of protection of the presentdisclosure.

As used herein, when a first component (or unit, element, member, part,piece) is referred to as “coupled,” “mounted,” “fixed,” “secured” to orwith a second component, it is intended that the first component may bedirectly coupled, mounted, fixed, or secured to or with the secondcomponent, or may be indirectly coupled, mounted, or fixed to or withthe second component via another intermediate component. The terms“coupled,” “mounted,” “fixed,” and “secured” do not necessarily implythat a first component is permanently coupled with a second component.The first component may be detachably coupled with the second componentwhen these terms are used. When a first component is referred to as“connected” to or with a second component, it is intended that the firstcomponent may be directly connected to or with the second component ormay be indirectly connected to or with the second component via anintermediate component. The connection may include mechanical and/orelectrical connections. The connection may be permanent or detachable.The electrical connection may be wired or wireless. When a firstcomponent is referred to as “disposed,” “located,” or “provided” on asecond component, the first component may be directly disposed, located,or provided on the second component or may be indirectly disposed,located, or provided on the second component via an intermediatecomponent. When a first component is referred to as “disposed,”“located,” or “provided” in a second component, the first component maybe partially or entirely disposed, located, or provided in, inside, orwithin the second component. The terms “perpendicular,” “horizontal,”“vertical,” “left,” “right,” “up,” “upward,” “upwardly,” “down,”“downward,” “downwardly,” and similar expressions used herein are merelyintended for describing relative positional relationship.

It should be understood that in the present disclosure, relational termssuch as first and second, etc., are only used to distinguish an entityor operation from another entity or operation, and do not necessarilyrequire or imply that there is an actual relationship or order betweenthe entities or operations. The terms “comprising,” “including,” or anyother variations are intended to encompass non-exclusive inclusion, suchthat a process, a method, an apparatus, or a device having a pluralityof listed items not only includes these items, but also includes otheritems that are not listed, or includes items inherent in the process,method, apparatus, or device. Without further limitations, an itemmodified by a term “comprising a . . . ” does not exclude inclusion ofanother same item in the process, method, apparatus, or device thatincludes the item.

A person having ordinary skills in the art can appreciate that when theterm “and/or” is used, the term describes a relationship between relateditems. The term “and/or” means three relationships may exist between therelated items. For example, A and/or B can mean A only, A and B, and Bonly. The symbol “/” means “or” between the related items separated bythe symbol. The phrase “at least one of” A, B, or C encompasses allcombinations of A, B, and C, such as A only, B only, C only, A and B, Band C, A and C, and A, B, and C. The term “and/or” may be interpreted as“at least one of” The term “communicatively coupled” or “communicativelyconnected” indicates that related items are coupled or connected througha communication channel, such as a wired or wireless communicationchannel.

The embodiments of the present disclosure provide a screen controlmethod and device. The screen control device may be a camera. When theuser uses the camera for a non-selfie shooting, the user may face afirst screen. The user may view the images captured by the lens, andtherefore can capture the user desired images. When the user performs aselfie shooting, the user may face a second screen. The first screendisplays the images captured by the lens, which are not viewable to theuser.

To solve the above problems, the embodiments of the present disclosureprovide a camera. FIG. 1 is a perspective view of a schematic structureof the camera provided by the present disclosure. FIG. 2 is a front viewof the camera in the A direction of FIG. 1. Referring to FIG. 1 and FIG.2, the camera may include a machine body 10, and a first screen 11, asecond screen 12, a lens 13, and a shutter 14 disposed on the machinebody 10. The first screen 11 and the second screen 12 may be disposedfacing against one another. The lens 13 may be disposed at a secondscreen 12 side. The first screen 11 may be a screen that displays theimages captured by the lens 13 after the camera starts up. The camera ofthe present embodiment may also include a controller. The controller maybe configured to obtain a first command.

It can be understood that, because the first screen 11 and the secondscreen 12 are disposed facing against one another, only the secondscreen 12 can be viewed in FIG. 1. The first screen 11 can be viewed inFIG. 2.

FIG. 3 is a second perspective view of the schematic structure of thecamera provided by the present disclosure. Referring to FIG. 3, based onthe camera provided in FIG. 1 and FIG. 2, the camera shown in FIG. 3 mayalso include a screen switching key 15. When the user operates thescreen switching key 15, the controller may obtain the first command,and may control, based on the first command, switching from the firstscreen 11 to the second screen 12 to display images captured by the lens13 or switching from the second screen 12 to the first screen 11 todisplay the images captured by the lens 13.

Next, with reference to specific embodiments, the screen control methodof the camera shown in FIG. 1, FIG. 2, or FIG. 3 provided by theembodiments of the present disclosure will be described.

FIG. 4 is a first flow chart illustrating a screen control methodprovided by the embodiments of the present disclosure. As shown in FIG.4, the method of the present embodiment may include:

Step S101: obtaining a first command, the first command configured tocontrol switching from the first screen 11 to the second screen 12 todisplay an image captured by the lens 13, or switching from the secondscreen 12 to the first screen 11 to display the images captured by thelens 13;

Step S102: controlling, based on the first command, switching from thefirst screen 11 to the second screen 12 to display the image captured bythe lens 13 or switching from the second screen 12 to the first screen11 to display the images captured by the lens 13;

In some embodiments, the execution entity of the present embodiment maybe the camera shown in FIG. 1, FIG. 2, or FIG. 3;

In some embodiments, if the first screen 11 displays an image capturedby the lens 13, when the user desires to perform a selfie shooting, theuser may perform a predetermined operation on the camera. The controllerof the camera may obtain, based on the predetermined operation of theuser, the first command configured to instruct to switch the screen fordisplaying the image captured by the lens 13.

Next, the camera may control, based on the first command, the switchingfrom the first screen 11 to the second screen 12 to display the imagecaptured by the lens 13. As such, the user who performs the selfieshooting can view the images captured by the lens 13 through the secondscreen 12, thereby capturing the user desired images.

Because in a selfie shooting, there is a need to place the lens 13 ofthe camera to face oneself. Thus, the second screen 12 may face theuser. After the controller controls the display of the image captured bythe lens 13 at the second screen 12, the user may view the imagecaptured by the lens when performing a selfie shooting.

When the user finishes the selfie shooting, and captures images in anon-selfie shooting scene, the user may place the lens 13 of the camerato face an imaging object. Then, the first screen 11 may face the user.The user may again perform a predetermined operation on the camera. Thecontroller of the camera may obtain, based on the predeterminedoperations by the user, the first command configured to instruct toswitch the screen for displaying the image captured by the lens 13.

Next, the camera may control, based on the first command, the switchingfrom the second screen 12 to the first screen 11 to display the imagecaptured by the lens 13. As such, a user performing a non-selfieshooting may view the image captured by the lens 13 through the firstscreen 11, thereby capturing the user desired images.

In a non-selfie shooting, the user may place the lens 13 to face theimaging object. Then, the first screen 11 may face the user. After thecontroller controls the display of the image captured by the lens 13 onthe first screen 11, the user can view the image captured by the lenswhen performing a non-selfie shooting.

In some embodiments, the first screen 11 and the second screen 12 may betouch screens. The predetermined operation may be touching apredetermined path on the second screen 12 or the first screen 11 of thecamera, uttering a predetermined voice, moving the camera based on apredetermined action, clicking a predetermined location on the secondscreen 12 or the first screen 11, clicking a screen switching key 15disposed on the machine body 10, etc.

Further, to save the energy consumption of the camera, after controllingthe switch from the first screen 11 to the second screen 12 to displaythe image captured by the lens 13, the controller may control the firstscreen 11 to be in a screen blackout state; or

After controlling the switch from the second screen 12 to the firstscreen 11 to display the image captured by the lens 13, the controllermay control the second screen 12 to be in the screen blackout state.

In the present embodiment, the camera may control, based on the firstcommand that instructs to switch the display of the image captured bythe lens, the switch from the first screen to the second screen todisplay the image captured by the lens or the switch from the secondscreen to the first screen to display the image captured by the lens.The second screen may be a screen the user faces when performing aselfie shooting. As such, when the user performs a selfie shooting and anon-selfie shooting, the user can view the image captured by the lens,thereby capturing the user desired images. User experience is enhanced.

In addition, besides the screen control method of the embodiment shownin FIG. 1, the screen control method may also include the followingimplementation methods: if the first screen 11 displays an imagecaptured by the lens 13, and the second screen 12 does not display theimage captured by the lens 13, when the user performs a selfie shooting,the user may perform a predetermined operation on the camera. After thecontroller obtains the first command based on the predeterminedoperation, the controller may control, based on the first command, thesecond screen 12 to display the image captured by the lens 13. However,the first screen 11 may continue to display the image captured by thelens 13. In other words, two screens may simultaneously display theimages captured by the lens 13. In this implementation method, when theselfie shooting is switched to a non-selfie shooting, there is no needto again perform the predetermined operation. When the selfie shootingis to be performed again, there is also no need to perform thepredetermined operation.

Next, with reference to the embodiments shown in FIG. 5 to FIG. 11, thescreen control method under the scene of the user performing a selfieshooting, as shown in the embodiment in FIG. 1, will be described indetail.

FIG. 5 is a second flow chart illustrating a screen control methodprovided by the embodiments of the present disclosure. As shown in FIG.5, the method of the present disclosure may include:

Step S201: obtaining a touch path of the user on the second screen 12 orthe first screen 11;

Step S202: triggering the first command if the touch path of the user onthe second screen 12 or the first screen 11 is the same as apredetermined path stored in the camera;

Step S203: controlling, based on the first command, switching from thefirst screen 11 to the second screen 12 to display the image captured bythe lens 13.

In some embodiments, the second screen 12 and/or the first screen 11 ofthe present embodiment are touch screens.

In some embodiments, if the first screen 11 displays an image capturedby the lens 13, when the user desires to perform a selfie shooting, afinger of the user may perform a touch operation on the first screen 11or the second screen 12. The controller may obtain the touch pathcorresponding to the touch operation of the user, and determine whetherthe touch path of the user on the first screen 11 or the second screen12 is the same as the predetermined path stored in the camera. If theyare the same, the controller may trigger the first command;

Next, after the first command is triggered, the camera may controlswitching from the first screen 11 to the second screen 12 to displaythe image captured by the lens 13.

Because in a selfie shooting, there is a need to place the lens 13 ofthe camera to face oneself, the second screen 12 may face the user.After the controller controls the display of the image captured by thelens 13 on the second screen 12, the user can view the image captured bythe lens 13 in a selfie shooting.

It can be understood that, if the second screen 12 and the first screen11 are both touch screens, when switching from a non-selfie shootingscene to a selfie shooting scene, the user may place the lens 13 of thecamera to face the user after the second screen 12 displays the imagecaptured by the lens 13. Then, the user may perform a touch operation onthe first screen 11. If the non-selfie shooting scene is switched to aselfie shooting scene, the user may place the lens 13 of the camera toface the user. Then, the second screen 12 may face the user. The usermay perform a touch operation on the second screen 12.

The method of the present disclosure enables the user to view the imagecaptured by the lens in a selfie shooting, thereby enabling the user tocapture the user desired images. User experience is enhanced.

Corresponding to the embodiment shown in FIG. 5, if the selfie shootingis switched to the non-selfie shooting, the screen control method mayinclude: obtaining a touch path of the user on the first screen 11 orthe second screen 12; if the touch path of the user on the first screen11 or the second screen 12 is the same as the predetermined path storedin the camera, triggering the first command; and controlling, based onthe first command, switching from the second screen 12 to the firstscreen 11 to display the image captured by the lens 13. The detailedprocesses are not repeated.

FIG. 6 is a third flow chart illustrating a screen control methodprovided by the embodiments of the present disclosure. As shown in FIG.6, the method of the present embodiment may include:

Step S301: obtaining a rotation angle of the camera;

Step S302: triggering the first command if the rotation angle of thecamera within a first predetermined time period is within a firstpredetermined range;

Step S303: controlling, based on the first command, switching from thefirst screen 11 to the second screen 12 to display the image captured bythe lens 13.

In some embodiments, the camera of the present embodiment may include anangle sensor. The angle sensor may include at least one of an electroniccompass or a gyroscope.

In some embodiments, if the first screen 11 displays an image capturedby the lens 13, when the user desires to perform a selfie shooting, theuser may rotate the camera to any angle within the first predeterminedrange within the first predetermined time period. The angle sensor inthe camera may detect the rotation angle or the rotation angularvelocity of the camera. If the angle sensor is the gyroscope, thegyroscope may detect the rotation angular velocity of the camera. Thecontroller in the camera may obtain the rotation angle of the camerabased on the rotation angular velocity detected by the gyroscope. If theangle sensor is the electronic compass, the electronic compass maydetect the rotation angle of the camera. The controller in the cameramay obtain the rotation angle of the camera detected by the electroniccompass.

If the rotation angle obtained by the controller in the camera withinthe first predetermined time period is within the first predeterminedrange, then the controller may trigger the first command.

It can be understood that, during the rotation of the camera, the secondscreen 12 can be maintained to face the user.

In some embodiments, the first predetermined time period may be any timeperiod between 0.2 to 2 seconds.

In some embodiments, the first predetermined time period may be any timeperiod between 0.5 to 1 seconds.

In some embodiments, the first predetermined range may be 160° to 200°,or −200° to −160°.

In some embodiments, the first predetermined range may be 170° to 180°;or −190° to −170°.

In some embodiments, the positive angle range means the camera rotatesclockwise, the negative angle range means the camera rotatescounter-clockwise.

For example: the camera may detect that the camera rotates 180° within 1second, and then trigger the first command. As another example: thecamera may detect that the camera rotates −175° within 0.8 seconds, andthen trigger the first command.

Next, after the first command is triggered, the camera may controlswitching from the first screen 11 to the second screen 12 to displaythe image captured by the lens 13.

Because in a selfie shooting, there is a need to place the lens 13 ofthe camera to face oneself, the second screen 12 may face the user.After the controller controls the display of the image captured by thelens 13 on the second screen 12, the user may view the image captured bythe lens 13 in a selfie shooting.

The method of the present embodiment enables the user to view the imagecaptured by the lens, thereby enabling the user to capture the userdesired images. User experience is enhanced.

Corresponding to the embodiment shown in FIG. 6, if the user switchesfrom a selfie shooting to a non-selfie shooting, the screen controlmethod may include: obtaining a rotation angle of the camera; if therotation angle of the camera within a first predetermined time period iswithin a first predetermined range, triggering a first command; andcontrolling, based on the first command, switching from the secondscreen 12 to the first screen 11 to display an image captured by thelens 13. The detailed processes are not repeated.

FIG. 7 is a fourth flow chart illustrating a screen control methodprovided by the embodiments of the present disclosure. As shown in FIG.7, the method of the present embodiment may include:

Step S401: obtaining an acceleration of the camera in an X axisdirection, an acceleration in a Y axis direction, and an acceleration ina Z axis direction;

Step S402: triggering the first command if, within a secondpredetermined time period, the acceleration of the camera in the X axisdirection is within a second predetermined range, the acceleration inthe Y axis direction is within a third predetermined range, and theacceleration in the Z axis direction is within a fourth predeterminedrange;

Step S403: controlling, based on the first command, switching from thefirst screen 11 to the second screen 12 to display the image captured bythe lens 13.

In some embodiments, the camera of the present embodiment may include anaccelerometer or other structure that can measure the acceleration ofthe camera.

In some embodiments, if the first screen 11 displays an image capturedby the lens 13, when the user desires to perform a selfie shooting, theuser may move the camera back and forth within the second predeterminedtime period, i.e., make the camera to perform a round-trip movement. Theaccelerometer in the camera may detect, during the movement of thecamera, the acceleration in the X axis direction, the acceleration inthe Y axis direction, and the acceleration in the Z axis direction.After the controller inside the camera obtains, during the movement ofthe camera, the acceleration in the X axis direction, the accelerationin the Y axis direction, and the acceleration in the Z axis direction,if the controller determines that within the second predetermined timeperiod the acceleration of the camera in the X axis direction is withinthe second predetermined range, the acceleration in the Y axis directionis within the third predetermined range, and the acceleration in the Zaxis direction is within the fourth predetermined range, the controllermay trigger the first command. In some embodiments, the secondpredetermined range, the third predetermined range, and the fourthpredetermined range may be ranges corresponding to a moving state of thecamera being in a round-trip movement.

The round-trip movement may be any one of a front-back round-tripmovement, a left-right round-trip movement, an up-down round-tripmovement, or a round-trip movement in a direction forming a slant anglewith respect to a horizontal plane (i.e., the user may randomly shake orswing the cell phone).

In some embodiments, if the front-back round-trip movement can triggerthe first command, then, the camera may be moved in the front and backdirection within the second predetermined time period a priori, toobtain a range for the acceleration of the camera in the X axisdirection, a range for the acceleration in the Y axis direction, and arange for the acceleration in the Z axis direction. Such processes maybe repeated multiple times. Statistics may be performed to obtain thesecond predetermined range, the third predetermined range, and thefourth predetermined range corresponding to the front-back round-tripmovement of the camera within the second predetermined time period,which may be stored in the camera when the camera leaves the factory.

The same method may be used to obtain the second predetermined range,the third predetermined range, and the fourth predetermined rangecorresponding to the left-right round-trip movement, the up-downround-trip movement, or the round-trip movement in a direction forming aslant angle with respect to the horizontal plane of the camera when thecamera performs these movements within the second predetermined timeperiod.

It can be understood that, the above four different forms of round-tripmovements correspond to at least four groups of acceleration ranges.Each group of acceleration ranges may include: a second predeterminedrange, a third predetermined range, a fourth predetermined range.

The camera may store at least one group of the at least four groups ofacceleration ranges when leaving the factory.

For example, if the camera stores the second predetermined range, thethird predetermined range, and the fourth predetermined rangecorresponding to the left-right round-trip movement of the camera withinthe second predetermined time period, it may indicate that the firstcommand can be triggered when the camera performs the left-rightround-trip movement. If the user desires to display the image capturedby the lens 13 on the second screen 12, the user may move the camera tothe left and right within the second predetermined time period, suchthat the camera performs the left-right round-trip movement.

As another example, if the camera stores the second predetermined range,the third predetermined range, and the fourth predetermined rangecorresponding to the left-right round-trip movement of the camera withinthe second predetermined time period, and stores the secondpredetermined range, the third predetermined range, the fourthpredetermined range corresponding to the front-back round-trip movementwithin the second predetermined time period, it may indicate that thefirst command can be triggered when the camera performs the left-rightround-trip movement or the front-back round-trip movement. If the userdesires to display the image captured by the lens 13 on the secondscreen 12, the user may move the camera left-and-right or front-and-backwithin the second predetermined time period, such that the cameraperforms the left-right round-trip movement or the front-back round-tripmovement.

In some embodiments, the second predetermined time period may be 0.5 to2 seconds.

In some embodiments, the user may move the camera in a direction withinthe second predetermined time period, e.g., the user may cause thecamera to move in a direction. The accelerometer inside the camera maydetect, during the movement of the camera, the acceleration in the Xaxis direction, the acceleration in the Y axis direction, and theacceleration in the Z axis direction. After the controller inside thecamera obtains, during the movement of the camera, the acceleration inthe X axis direction, the acceleration in the Y axis direction, and theacceleration in the Z axis direction, if the controller determines thatwithin the second predetermined time period the acceleration of thecamera in the X axis direction is within the second predetermined range,the acceleration in the Y axis direction is within the thirdpredetermined range, and the acceleration in the Z axis direction iswithin the fourth predetermined rage, the controller may trigger thefirst command. The second predetermined range, the third predeterminedrange, and the fourth predetermined range may be ranges corresponding tothe moving state of the camera being moving in a first direction.

Moving in the first direction may include moving upwardly, movingdownwardly, moving to the left, moving to the right, or movingobliquely.

It can be understood that, the above five different forms of moving inthe first direction at least correspond to five groups of accelerationranges. Each group of acceleration ranges may include: a secondpredetermined range, a third predetermined range, a fourth predeterminedrange. The camera may store at least one group of the at least fivegroups of acceleration ranges when leaving the factory.

The method for obtaining the second predetermined range, the thirdpredetermined range, and the fourth predetermined range included in eachgroup of acceleration ranges can refer to the method in the previousimplementation method, which is not repeated.

In some embodiments, the second predetermined time period may be 0.5 to2 seconds.

Next, after the first command is triggered, the camera may control theswitch from the first screen 11 to the second screen 12 to display theimage captured by the lens 13.

Because in a selfie shooting, there is a need to place the lens 13 ofthe camera to face oneself, the second screen 12 may face the user.After the controller controls the display of the image captured by thelens 13 on the second screen 12, the user can view the image captured bythe lens 13 when the user performs the selfie shooting.

The method of the present embodiment enables the user to view the imagecaptured by the lens when performing a selfie shooting, thereby enablingthe user to capture the user desired images. User experience isenhanced.

Corresponding to the embodiments shown in FIG. 7, if the user switchesfrom a selfie shooting to a non-selfie shooting, the screen controlmethod may include: obtaining an acceleration of the camera in the Xaxis direction, an acceleration in the Y axis direction, and anacceleration in the Z axis direction; triggering the first command if,within the second predetermined time period, the acceleration of thecamera in the X axis direction is within the second predetermined range,the acceleration in the Y axis direction is within the thirdpredetermined range, and the acceleration in the Z axis direction iswithin the fourth predetermined range; and controlling switching fromthe second screen 12 to the first screen 11 to display the imagecaptured by the lens 13. The detailed processes are not repeated.

FIG. 8 is a fifth flow chart illustrating a screen control methodprovided by embodiments of the present disclosure. As shown in FIG. 8,the method of the present embodiment may include:

Step S501: triggering the first command if a predetermined number ofclick operations by the user are detected at a predetermined location onthe second screen 12 or the first screen 11;

Step S502: controlling, based on the first command, switching from thefirst screen 11 to the second screen 12 to display an image captured bythe lens 13.

In some embodiments, the second screen 12 and/or the first screen 11 ofthe present embodiment are touch screens. In addition, the second screen12 and/or the first screen 11 of the camera of the present embodimentmay display a predetermined icon button.

In some embodiments, if the first screen 11 displays an image capturedby the lens 13, when the user desires to perform a selfie shooting, theuser may click the predetermined icon button on the second screen 12 orthe first screen 11. The camera may detect a one-time click operation bythe user on the predetermined icon button on the second screen 12 or thefirst screen 11, and may trigger the first command. In some embodiments,the predetermined location may be a location at which the predeterminedicon button is located on the second screen 12 or the first screen 11.

It can be understood that, the name of the predetermined icon button maybe switch screen or control screen, etc.

In some embodiments, the user may click a blank region for apredetermined number of times on the second screen 12 or the firstscreen 11. The camera may detect the predetermined number of clickoperations by the user at the blank region on the second screen 12 orthe first screen 11, and may trigger the first command. Thepredetermined location may be the blank region of the second screen 12or the first screen 11.

In some embodiments, the predetermined number of times may be 1 time, 2times, or 3 times.

Next, after the first command is triggered, the camera may controlswitching from the first screen 11 to the second screen 12 to displaythe image captured by the lens 13.

Because in a selfie shooting, there is a need to place the lens 13 ofthe camera to face oneself, the second screen 12 may face the user.After the controller controls display of the image captured by the lens13 on the second screen 12, the user may view the image captured by thelens 13 in the selfie shooting.

It can be understood that, if the second screen 12 and the first screen11 are both touch screens, when switching from a non-selfie shootingscene to a selfie shooting scene, the user may place the lens 13 of thecamera to face the user after the second screen 12 displays the imagecaptured by the lens 13. Then, the user may perform the click operationon the first screen 11. When switching from the non-selfie shootingscene to the selfie shooting scene, the user may place the lens 13 ofthe camera to face the user first. At this moment, the second screen 12faces the user, and the user may perform the click operation on thesecond screen 12.

The method of the present embodiment enables the user to view the imagecaptured by the lens when performing the selfie shooting, therebyenabling the user to capture the user desired images. User experience isalso enhanced.

Corresponding to the embodiment shown FIG. 8, when switching from aselfie shooting to a non-selfie shooting, the screen control method mayinclude: triggering the first command when a predetermined number ofclick operations by the user at a predetermined location on the firstscreen 11 or the second screen 12 are detected; and controlling, basedon the first command, switching from the second screen 12 to the firstscreen 11 to display an image captured by the lens 13. The detailedprocesses are not repeated.

FIG. 9 is a fifth flow chart illustrating a screen control methodprovided by embodiments of the present disclosure. As shown in FIG. 9,the method of the present disclosure may include:

Step S601: triggering the first command when an operation by the user ona predetermined physical pressing key of the camera is detected;

Steps S602: controlling, based on the first command, switching from thefirst screen 11 to the second screen 12 to display an image captured bythe lens 13.

In some embodiments, the camera of the present embodiment is a camerahaving the predetermined physical pressing key.

In some embodiments, if the first screen 11 displays an image capturedby the lens 13, when the user desires to perform a selfie shooting, theuser may operate the predetermined physical pressing key. The camera maydetect the operation by the user on the predetermined physical pressingkey, and may trigger the first command.

In some embodiments, the predetermined physical pressing key may be aphysical pressing key newly added and dedicated for switching the screenfor displaying the image captured by the lens 13, such as the screenswitching key 15 shown in FIG. 3. In the present embodiment, thephysical pressing key is not limited to a pressable key, and can also bea slidable key.

The user operation on the predetermined physical pressing key may be theuser clicking the predetermined physical pressing key (i.e., pressingand immediately releasing the predetermined physical pressing key), theuser sliding the physical pressing key from a first location to a secondlocation, or the user pressing the predetermined physical pressing keyfor a third predetermined time period.

In some embodiments, the third predetermined time period may be any timeperiod between 1 second to 2 seconds.

Next, after the first command is triggered, the camera may switch fromthe first screen 11 to the second screen 12 to display an image capturedby the lens 13.

Because in a selfie shooting, there is a need to place the lens 13 ofthe camera to face oneself, the second screen 12 may face the user.After the controller controls the display of the image captured by thelens 13 on the second screen 12, the user can view the image captured bythe lens 13 when performing the selfie shooting.

The method of the present embodiment enables the user to view the imagecaptured by the lens in a selfie shooting, thereby enabling the user tocapture the user desired images. User experience is enhanced.

Corresponding to the embodiment shown in FIG. 9, when a selfie shootingis switched to a non-selfie shooting, the screen control method mayinclude: triggering the first command when detecting an operation of theuser on the predetermined physical pressing key of the camera; andcontrolling, based on the first command, switching from the secondscreen 12 to the first screen 11 to display an image captured by thelens 13. The detailed processes are not repeated.

FIG. 10 is a sixth flow chart illustrating a screen control methodprovided by embodiments of the present disclosure. As shown in FIG. 10,the method of the present embodiment may include:

Step S701: obtaining a voice signal of the user;

Step S702: recognizing the voice signal of the user, and obtaining textinformation corresponding to the voice signal of the user.

Step S703: triggering the first command if the text information is thesame as text information pre-stored in the camera.

Step S704: controlling, based on the first command, switching from thefirst screen 11 to the second screen 12 to display an image captured bythe lens 13.

In some embodiments, the camera of the present embodiment is a camerahaving a voice receiver and a voice recognition function. The voicereceiver of the present embodiment may be a microphone.

In some embodiments, if the first screen 11 displays an image capturedby the lens 13, when the user desires to perform a selfie shooting, theuser may utter a predetermined word or sentence. The voice receiver ofthe camera may receive the voice signal corresponding to thepredetermined word or sentence. The controller of the camera may obtainthe voice signal, recognize the voice signal, and obtain textinformation corresponding to the voice signal. The controller maydetermine whether the text information corresponding to the voice signalis the same as the text information pre-stored in the camera. If theyare the same, the controller may trigger the first command.

The predetermined word may be “switch” or “screen.” The predeterminedsentence may be “display images at the front screen.”

In some embodiments, if the predetermined word is switch, then the textinformation pre-stored in the camera may be “switch”.

Next, after the first command is triggered, the camera may controlswitching from the first screen 11 to the second screen 12 to display animage captured by the lens 13.

Because in the selfie shooting, there is a need to place the lens 13 toface oneself, the second screen 12 may face the user. After thecontroller controls display of the image captured by the lens 13 on thesecond screen 12, the user can view the image captured by the lens 13 inthe selfie shooting.

The method of the present embodiment enables the user to view the imagecaptured by the lens in the selfie shooting, thereby enabling the userto capture the user desired images. User experience is enhanced.

Corresponding to the embodiment shown in FIG. 10, when the user switchesfrom a selfie shooting to a non-selfie shooting, the screen controlmethod may include: obtaining a voice signal of the user; recognizingthe voice signal of the user, and obtaining text informationcorresponding to the voice signal of the user; if the text informationis the same as the text information pre-stored in the camera, triggeringthe first command; and controlling, based on the first command,switching from the second screen 12 to the first screen 11 to display animage captured by the lens 13. The detailed processes are not repeated.

FIG. 11 is a seventh flow chart illustrating a screen control methodprovided by embodiments of the present disclosure. As shown in FIG. 11,the method of the present embodiment may include:

Step S801: obtaining an image displayed on the first screen 11;

Step S802: if a human face image included in the image displayed on thefirst screen 11 is a target human face image, and a ratio of the targethuman face image occupying the image displayed on the first screen 11 isgreater than a predetermined ratio, triggering the first command; thetarget human face image is a human face image stored in the camera;

Step S803: controlling, based on the first command, switching from thefirst screen 11 to the second screen 12 to display an image captured bythe lens 13.

In some embodiments, the camera of the present embodiment may include animage acquisition device communicatively connected with the controller.

In some embodiments, if the first screen 11 displays an image capturedby the lens 13, when the user desires to perform a selfie shooting, theuser may place his or her face as close to the lens 13 as possible. Theimage acquisition device may acquire the entire image displayed on thefirst screen 11. The controller of the camera may obtain the acquiredentire image displayed on the first screen 11, and detect whether ahuman face image of the entire image is a target human face image. Ifthe human face image of the entire image is the target human face image,then the controller may determine whether a ratio of the target humanface image occupying the entire image is greater than a predeterminedratio. If the ratio is greater than the predetermined ratio, then thecontroller may trigger the first command.

In some embodiments, the target human face image may be a human faceimage stored in the camera.

In some embodiments, the predetermined ratio may be any ratio between90%˜100%;

In some embodiments, the predetermined ratio may be any ratio between95%˜100%;

In some embodiments, the predetermined ratio may be stored in thecamera.

Next, after the first command is triggered, the camera may controlswitching from the first screen 11 to the second screen 12 to display animage captured by the lens 13.

Because in a selfie shooting, there is a need to place the lens 13 toface oneself, the second screen 12 may face the user. After thecontroller controls the display of the image captured by the lens 13 onthe second screen 12, the user can view the image captured by the lens13 in the selfie shooting.

The method of the present embodiment enables the user to view the imagecaptured by the lens in the selfie shooting, thereby enabling the userto capture the user desired images. User experience is enhanced.

Corresponding to the embodiment shown in FIG. 11, when the user switchesfrom the selfie shooting to the non-selfie shooting, the screen controlmethod may include: obtaining an image displayed on the second screen12; if a human face image included in the image displayed on the secondscreen 12 is a target human face image, and a ratio of the target humanface image occupying the image displayed on the second screen 12 isgreater than a predetermined ratio, triggering the first command; thetarget human face image is a human face image stored in the camera; andcontrolling, based on the first command, switching from the secondscreen 12 to the first screen 11 to display an image captured by thelens 13. The detailed processes are not repeated.

FIG. 12 is a first schematic illustration of a structure of a screencontrol device provided by embodiments of the present disclosure. Asshown in FIG. 12, a screen control device 400 of the present disclosuremay include: a storage device 41 and a processor 42, the storage device41 being coupled with the processor 42.

The storage device 41 may be configured to store program instructions.

The processor 42 may be configured to retrieve the program instructionsfrom the storage device 41 to execute the solutions of the above variousembodiments.

The screen control device of the present embodiment may be configured toexecute the technical solutions of the above various embodiments of themethod. The realization principles and technical effects are similar,which are not repeated.

In some embodiments, the controller in the following various embodimentsmay be at least a part of the processor 41.

FIG. 13 is a second schematic illustration of a structure of a screencontrol device provided by the embodiments of the present disclosure. Asshown in FIG. 13, the screen control device of the present embodimentmay include a machine body, a first screen, a second screen, and a lensdisposed on the machine body, and a controller disposed inside themachine body. The first screen and the second screen may be disposedfacing against one another. The lens may be disposed at the secondscreen side. The controller may be communicatively connected with thefirst screen, the second screen, and the lens. The first screen may be ascreen that displays an image captured by the lens after the screencontrol device starts up.

The controller 51 may be configured to obtain a first command. The firstcommand may be configured to instruct to display the image captured bythe lens on the second screen.

The controller 51 may be configured to control the display of the imagecaptured by the lens on the second screen based on the first command.

The screen control device of the present embodiment may be configured toexecute the technical solutions of the above various embodiments of themethod. The realization principles and the technical effects aresimilar, which are not repeated.

In some embodiments, the controller may be configured to:

switch display of an image captured by the lens from the first screenthe second screen based on the first command.

In some embodiments, the controller may be configured to: control thefirst screen to be in a screen blackout state.

In some embodiments, the controller may be configured to obtain a touchpath of the user on the second screen or the first screen. If the touchpath is the same as a predetermined path stored in the camera, thecontroller may trigger the first command.

In some embodiments, the controller may be configured to trigger thefirst command if a predetermined number of click operations by the useris detected at a predetermined location on the second screen or thefirst screen.

In some embodiments, the predetermined location may be a location of apredetermined icon button on the second screen or the first screen; or

the predetermined location may be a blank region on the second screen orthe first screen.

In some embodiments, the predetermined number may be 1 time, 2 times, or3 times.

The screen control device of the present embodiment may be configured toexecute the technical solutions of the above various embodiments of themethod. The principles and technical effects are similar, which are notrepeated.

FIG. 14 is a third schematic illustration of a structure of the screencontrol device provided by embodiments of the present disclosure. Asshown in FIG. 14, the screen control device of the present embodimentmay also include, on the basis of the screen control device shown inFIG. 13: an angle sensor 55 communicatively connected with thecontroller 51.

The angle sensor 55 may be configured to detect a rotation angle or arotation angular velocity of the camera.

The controller 51 may be configured to: obtain a rotation angle of thecamera based on the rotation angle or rotation angular velocity detectedby the angle sensor. If the rotation angle of the camera within a firstpredetermined time period is within a first predetermined range, thecontroller 51 may trigger the first command. In some embodiments, thefirst predetermined time period may be any time period between 0.2 to 2seconds.

In some embodiments, the first predetermined time period may be any timeperiod between 0.5 to 1 seconds.

In some embodiments, the first predetermined range may be 160° to 200°,or −200° to −160°.

In some embodiments, the first predetermined range may be 170° to 180°,or −190° to −170°.

The screen control device of the present embodiment may be configured toexecute the technical solutions of the above various embodiments of themethod. The principles and technical effects are similar, which are notrepeated.

FIG. 15 is a fourth schematic illustration of a screen control deviceprovided by the embodiments of the present disclosure. As shown in FIG.15, the screen control device of the present embodiment may alsoinclude, on the basis of the screen control device shown in FIG. 13: anaccelerometer 56 communicatively connected with the controller 51.

The accelerometer 56 may be configured to detect an acceleration of thecamera in the X axis direction, an acceleration in the Y axis direction,and an acceleration in the Z axis direction.

The controller 51 may be configured to:

obtain the acceleration of the camera in the X axis direction, theacceleration in the Y axis direction, and the acceleration in the Z axisdirection as detected by the accelerometer; and

trigger the first command if, within the second predetermined timeperiod, the acceleration of the camera in the X axis direction is withinthe second predetermined range, the acceleration in the Y axis directionis within the third predetermined range, and the acceleration in the Zaxis direction is within the fourth predetermined range.

In some embodiments, the second predetermined time period may be anytime period between 0.5 seconds to 2 seconds.

In some embodiments, all of the second predetermined range, the thirdpredetermined range, and the fourth predetermined range may be rangescorresponding to the moving state of the camera being a round-tripmovement.

In some embodiments, all of the second predetermined range, the thirdpredetermined range, and the fourth predetermined range may be rangescorresponding to the moving state of the camera being moving in a firstdirection.

The screen control device of the present embodiment may be configured toexecute the technical solutions of the above various embodiments of themethod. The principles and technical effects are similar, which are notrepeated.

FIG. 16 is a fifth schematic illustration of a screen control deviceprovided by embodiments of the present disclosure. As shown in FIG. 16,the screen control device of the present disclosure may also include, onthe basis of the screen control device shown in FIG. 13: a predeterminedphysical pressing key 57 communicatively connected with the controller51.

The controller 51 may be configured to trigger the first command if anoperation on the predetermined physical pressing key by the user isdetected.

The operation by the user on the predetermined physical pressing key ofthe camera may include any of the following items:

the user clicking the predetermined physical pressing key;

the user sliding the predetermined physical pressing key from a firstlocation to a second location; or

the user pressing the predetermined physical pressing key for a thirdpredetermined time period.

In some embodiments, the third predetermined time period may be any timeperiod between 1 second to 2 seconds.

The screen control device of the present embodiment may be configured toexecute the technical solutions of the above various embodiments of themethod. The principles and technical effects are similar, which are notrepeated.

FIG. 17 is a sixth schematic illustration of a screen control deviceprovided by embodiments of the present disclosure. As shown in FIG. 17,the screen control device of the present embodiment may also include, onthe basis of the screen control device shown in FIG. 13: a voicereceiver 58 communicatively connected with the controller 51.

The voice receiver 58 may be configured to receive a voice signal of theuser.

The controller 51 may be configured to:

obtain the voice signal of the user from the voice receiver;

recognize the voice signal, obtain text information corresponding to thevoice signal; and

trigger the first command if the text information is the same as textinformation stored in the camera.

The screen control device of the present embodiment may be configured toexecute the technical solutions of the above various embodiments of themethod. The principles and technical effects are similar, which are notrepeated.

FIG. 18 is a seventh schematic illustration of a screen control deviceprovided by embodiments of the present disclosure. As shown in FIG. 18,the screen control device may also include, on the basis of the screencontrol device shown in FIG. 13: an image acquisition device 59communicatively connected with the controller 51.

The image acquisition device 59 may be configured to acquire the imagedisplayed on the first screen.

The controller 51 may be configured to obtain the image, and if a humanface image included in the image is a target human face image, and aratio of the target human face image occupying the image is greater thana predetermined ratio, trigger the first command. The target human faceimage may be a human face image stored in the screen control device.

In some embodiments, the predetermined ratio may be any ratio between90%˜100%.

The screen control device of the present embodiment may be configured toexecute the technical solutions of the above various embodiments of themethod. The principles and technical effects are similar, which are notrepeated.

A person having ordinary skills in the art can appreciate: all or someof the steps realizing the various embodiments of the method may beaccomplished through hardware relevant to program instructions. Theprogram may be stored in a computer-readable storage medium. Whenexecuted, the program executes the steps of the above variousembodiments of the method; the storage medium includes various mediathat can store program codes: ROM, RAM, magnetic disks or optical disks,etc.

Finally, it should be noted: the above various embodiments are only forexplaining the technical solutions of the present disclosure, and arenot for limiting the present disclosure. Although the present disclosurehas been described in detail with reference to the above variousembodiments, a person having ordinary skills in the art can appreciate:the technical solutions described in the various embodiments can bemodified, or part or all of the technical features included therein canbe equivalently substituted. Such modification or substitution does notmake the spirit of the corresponding technical solutions fall out of thescope of the technical solutions of the various embodiments of thepresent disclosure.

1-20. (canceled)
 21. An image acquisition device comprising: a devicebody; a lens positioned on the device body and configured to capture animage; a first screen configured to display a first image, the firstscreen being positioned on a first side of the device body; a secondscreen configured to display a second image, the second screen beingpositioned on a second side of the device body different from the firstside; and a controller configured to control the first screen and thesecond screen.
 22. The image acquisition device of claim 21, wherein thefirst screen is a touch screen device.
 23. The image acquisition deviceof claim 21, wherein the second screen is a touch screen device.
 24. Theimage acquisition device of claim 21, wherein the lens is positioned onthe second side of the device body.
 25. The image acquisition device ofclaim 21, wherein the first side and the second side are opposite ofeach other.
 26. The image acquisition device of claim 21, wherein thecontroller is further configured to control the first screen to displaya black screen when the second screen is facing a user.
 27. The imageacquisition device of claim 26, wherein the controller is furtherconfigured to control the first screen to display the black screen tosave energy consumption.
 28. The image acquisition device of claim 21,wherein the controller is further configured to control the secondscreen to display a black screen when the first screen is facing a user.29. The image acquisition device of claim 28, wherein the controller isfurther configured to control the second screen to display the blackscreen to save energy consumption.
 30. The image acquisition device ofclaim 21, wherein the controller is further configured to receive a usercommand for changing an image displayed on the first screen or thesecond screen.
 31. The image acquisition device of claim 30, wherein thecontroller is further configured to cause the first screen to displaythe captured image.
 32. The image acquisition device of claim 31,wherein the controller is further configured to, in response to the usercommand, cause the second screen to display the captured image and causethe first screen to display a black screen.
 33. The image acquisitiondevice of claim 30, wherein the controller is further configured tocause the second screen to display the captured image.
 34. The imageacquisition device of claim 33, wherein the controller is furtherconfigured to, in response to the user command, cause the first screento display the captured image and cause the second screen to display ablack screen.
 35. The image acquisition device of claim 30, wherein thefirst screen is a touch screen device and receiving the user commandcomprises the controller detecting a touch input on the first screen.36. The image acquisition device of claim 35, wherein the touch inputcorresponds to an operation by a user forming a touch path.
 37. Theimage acquisition device of claim 36, wherein receiving the user commandfurther comprises the controller determining whether the touch pathmatches a predetermined path.
 38. The image acquisition device of claim37, wherein the controller is configured to control the first screen andthe second screen based on determining that the touch path matches thepredetermined path.
 39. The image acquisition device of claim 30,wherein receiving the user command comprises detecting a touch input onthe first screen when the first screen is displaying a black screen. 40.The image acquisition device of claim 30, wherein receiving the usercommand comprises detecting a touch input on the second screen when thesecond screen is displaying a black screen.